body,
html {

  margin: 0;
  padding: 0;
  height: 100vh!important;
  width: 100vw!important;
  display:flex!important;
  flex-direction: column;
}
*{
  transition: all 0.2;
}
header{

  height:60px!important;
  width: 100%;
  display:flex;
  box-shadow: 0px 6px 15px rgb(216, 216, 216);
  
  top: 0;
  left: 0;
}
main{
  user-select: text;
  height: 80vh;
  flex: 1;
  display: flex;
  flex-direction: row;
  justify-content: center;
}
.title{
  width: 100%;
  line-height:60px;
  padding:0 40px;
  font-size: 20px;
  font-weight: 500px;
}
header >ul{
  padding:0;
  display: flex;
  list-style: none;
  justify-content: space-evenly;
  width: 100%;
}
header img{
  height: 30px;
}



  pre {
    white-space: break-spaces !important;
  }

  body {
    --lightShadow: #fafafa;
    --darkShadow: #d1d9e6;
    --mainColor: #fff;
    --textColor: #333333;
    --titleUnderLine: #eee;
    --codeText: #777777;
  }
  html {
    font-size: 16px;
  }
  #YAML {
    height: 60vh;
    min-width: 137px;
    max-width: 100%;
  }
  div#md > *:focus {
    border-bottom-color: #000;
  }
  body {


    user-select: none;
    display: flex;
    font-family: "Open Sans", "Clear Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--textColor);
    line-height: 1.6;
  }
 
  body footer {
    border-top: 1px solid #00000024;
    position: fixed;
    bottom: 0;
    width: 100vw;
    background-color: white;
    box-shadow: 0 -9px 10px 0px #e6e6e65e;
  }
  ::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 0px;
    /*高宽分别对应横竖滚动条的尺寸*/
    height: 0px;
    scrollbar-arrow-color: red;
  }
  #md {
    padding: 20px 0px 20px 50px;
    overflow: scroll!important;
  }
  #md code span {
    margin: 0 0.2em;
  }
  #md code::before {
    color: var(--codeText);
  }
  #md code.javascript::before {
    content: "JS";
  }
  #md code.html::before {
    content: 'HTML' !important;
  }
  #md code.css::before {
    content: 'css';
  }
  #md code.c::before {
    content: 'C';
  }
  #md code.bash::before {
    content: 'Bash';
  }
  #md code.markdown::before {
    content: 'Markdown';
  }
  #md code.go::before {
    content: 'Go';
  }
  #md code.http::before {
    content: 'HTTP';
  }
  #md code.java::before {
    content: 'Java';
  }
  #md code.json::before {
    content: 'JSON';
  }
  #md code.kotlin::before {
    content: 'Kotlin';
  }
  #md code.less::before {
    content: 'Less' !important;
  }
  #md code.lua::before {
    content: 'Lua';
  }
  #md code.object-c::before {
    content: 'Objective-C';
  }
  #md code.php::before {
    content: 'php';
  }
  #md code.python::before {
    content: 'Python';
  }
  #md code.scss::before {
    content: 'SCSS' !important;
  }
  #md code.sql::before {
    content: 'SQL';
  }
  #md code.swift::before {
    content: 'Swift';
  }
  #md code.yaml::before {
    content: 'yaml';
  }
  #md code.typescript::before {
    content: 'TS';
  }
  #md code.xml::before {
    content: 'XML';
  }
  /* main class下为Markdown格式 */
  #md {
    font-size: 16px !important;
    max-width: 760px;
  }
  #md * {
    outline: none!important;
  }
  #md p {
    text-indent: 2em;
    line-height: 1.5em;
    margin: 0.8em 0;
  }
  #md blockquote {
    margin: 0.8em 0;
    border-left: 6px solid #dfe2e5;
    background-color: #fdfdfd;
    padding: 0 15px;
    color: var(--codeText);
  }
  #md blockquote table {
    padding: 0;
    word-break: initial;
  }
  #md blockquote blockquote {
    padding-right: 0;
  }
  #md blockquote::before {
    display: grid;
    content: "“";
    font-family: cursive;
    line-height: 0px;
    height: 0px;
    font-weight: 600;
    z-index: 99;
    font-size: xxx-large;
    opacity: 0.2;
    position: relative;
    top: 35px;
    left: -29px;
  }
  #md blockquote::after {
    display: grid;
    content: "”";
    font-family: cursive;
    line-height: 0px;
    height: 0px;
    font-weight: 600;
    z-index: 99;
    font-size: xxx-large;
    opacity: 0.2;
    position: relative;
    right: -90vh;
  }
  #md pre {
    margin: 30px 31px;
    border: 0;
    padding: 20px 36px 20px 35px;
    line-height: 1.9em;
    background-color: white;
    border-radius: 34px;
    font-family: unset;
    box-shadow: 1px 1px 15px var(--darkShadow), -1px -1px 15px var(--lightShadow);
  }
  #md pre code {
    color: var(--codeText);
    background: 0;
    border: 0;
    font-size: 18px;
    box-shadow: none;
    position: relative!important;
  }
  #md pre code::before {
    font-family: unset;
    color: var(--textColor);
    position: absolute;
    text-align: right;
    font-size: 1.2em;
    line-height: 15px;
    height: 15px;
    font-weight: 600;
    z-index: 99;
    right: 0;
    top: 0;
  }
  #md a {
    text-decoration: none;
    color: #4183c4;
    transition: color 0.2s;
  }
  #md a:hover {
    color: #d63200;
  }
  #md h1 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    cursor: text;
    padding-top: 0.3em;
    padding-bottom: 0.2em;
    font-size: 2.6em;
    line-height: 1.2;
    border-bottom: 2px solid var(--titleUnderLine);
  }
  #md h1:focus:before {
    content: 'h1';
    position: absolute;
    top: 25px;
    left: -46px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 21px;
    color: var(--darkShadow);
    padding: 0 5px;
  }
  #md h2 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    cursor: text;
    padding-bottom: 0.2em;
    font-size: 2em;
    line-height: 1.225;
    border-bottom: 2px solid var(--titleUnderLine);
  }
  #md h2:focus:before {
    content: 'h2';
    position: absolute;
    top: 7px;
    left: -46px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 21px;
    color: var(--darkShadow);
    padding: 0 5px;
  }
  #md h3 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 0.3rem;
    font-weight: bold;
    cursor: text;
    font-size: 1.61em;
    line-height: 1.43;
  }
  #md h3:focus:before {
    content: 'h3';
    position: absolute;
    top: 6px;
    left: -40px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 16px;
    color: var(--darkShadow);
    padding: 0 4px;
  }
  #md h4 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    cursor: text;
    font-size: 1.35em;
  }
  #md h4:focus:before {
    content: 'h4';
    position: absolute;
    top: 4px;
    left: -40px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 15px;
    color: var(--darkShadow);
    padding: 0 4px;
  }
  #md h5 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    cursor: text;
    font-size: 1em;
  }
  #md h5:focus:before {
    content: 'h5';
    position: absolute;
    top: 0px;
    left: -40px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 14px;
    color: var(--darkShadow);
    padding: 0 2px;
  }
  #md h6 {
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    cursor: text;
    font-size: 1em;
    color: #777;
  }
  #md h6:focus:before {
    content: 'h6';
    position: absolute;
    top: 0px;
    left: -40px;
    border: 2px solid;
    border-radius: 5px;
    font-size: 14px;
    color: var(--darkShadow);
    padding: 0 2px;
  }
  #md hr {
    height: 2px;
    padding: 0;
    margin: 16px 0;
    background-color: #e7e7e7;
    border: 0 none;
    overflow: hidden;
    box-sizing: content-box;
  }
  #md li ol,
  #md li ul {
    margin: 0 0;
  }
  #md li p.first {
    display: inline-block;
  }
  #md ul,
  #md ol {
    padding-left: 30px;
  }
  #md ul:first-child,
  #md ol:first-child {
    margin-top: 0;
  }
  #md ullast-child,
  #md ollast-child {
    margin-bottom: 0;
  }
  #md code {
    color: #d63200;
    margin: 0 10px;
    padding: 1px 7px;
    border-radius: 6px;
    box-shadow: 1px 1px 15px var(--darkShadow), -1px -1px 15px var(--lightShadow);
    font-family: unset;
    font-size: 0.9em;
  }
  #md table {
    box-shadow: 1px 1px 15px var(--darkShadow), -1px -1px 15px var(--lightShadow);
    padding: 12px;
    margin: 40px 10px;
  }
  #md table tr {
    margin: 0;
    padding: 0;
  }
  #md table tr:nth-child(2n) {
    background-color: #fafafa;
  }
  #md table tr td {
    margin: 0;
    padding: 6px 13px;
  }
  #md table tr td:first-child {
    margin-top: 0;
  }
  #md table tr th {
    background-color: #dddddd;
    font-weight: bold;
    border-bottom: 0;
    margin: 0;
    padding: 6px 13px;
  }
  #md table tr th:first-child {
    margin-top: 0;
  }
  #md thead {
    background-color: #f8f8f8;
  }